Answer:
c. 10
Step-by-step explanation:
Pick any two points from the table. I chose (0, -20) and (1, -10)
Let's find the slope between your two points.
(0,−20) (1,−10)
(x1, y1)=(0, −20)
(x2, y2)=(1, −10)
Use the slope formula:
m= y2 − y1 / x2 − x1
= −10 − −20 / 1 − 0
= 10 / 1
= 10
Answer:
r = 4.2 cm; d = 8.4 cm
Step-by-step explanation:
The radius is the distance from the centre of the circle to the circumference.
r = 4.2 cm
The diameter is the length of a straight line that passes through the centre with each end at the circumference.
d = 2r = 2 × 4.2 cm = 8.4 cm
Answer:
True
Step-by-step explanation:
The stem and leaf diagram is shown below
There are a total of 48 data
Question a:
The frequency in the stem for 9 to 9.9 is 13 data
Question b:
The location of the first quartile is given by

, where 'n' is the number of data
We have n = 48
Location of the first quartile is at

rounded down to 12
The value of the lower quartile is on the

on the diagram which is 8.7